CN115241617B - L wave band rotary combined joint - Google Patents
L wave band rotary combined joint Download PDFInfo
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- CN115241617B CN115241617B CN202210937836.9A CN202210937836A CN115241617B CN 115241617 B CN115241617 B CN 115241617B CN 202210937836 A CN202210937836 A CN 202210937836A CN 115241617 B CN115241617 B CN 115241617B
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- rotary
- debugging
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- wave guide
- main shaft
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/06—Movable joints, e.g. rotating joints
- H01P1/062—Movable joints, e.g. rotating joints the relative movement being a rotation
- H01P1/063—Movable joints, e.g. rotating joints the relative movement being a rotation with a limited angle of rotation
- H01P1/065—Movable joints, e.g. rotating joints the relative movement being a rotation with a limited angle of rotation the axis of rotation being parallel to the transmission path, e.g. stepped twist
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Abstract
The invention relates to the technical field of combined joints, in particular to an L-band rotary combined joint, which comprises a rotary mechanism, wherein one end of the rotary mechanism is connected with a guided wave mechanism, one end of the guided wave mechanism is provided with a debugging cabin, the inside of the rotary mechanism is provided with a main shaft, the other end of the rotary mechanism is provided with a connecting cabin, the main shaft penetrates through the inside of the connecting cabin, and a sealing mechanism is arranged between the debugging cabin and the rotary mechanism; the end part of the rotating mechanism is provided with the guided wave mechanism, the end part of the guided wave mechanism is connected with the debugging bin, the end part of the rotating mechanism is provided with the connecting bin, the main shaft is arranged inside the three parts, the waveguide rotating transmission system is formed among the structures, the waveguide rotating transmission system and the rest coaxial radio frequency rotating transmission system, the converging ring system and the sensor system are modularized, the reduction of the number of parts and the types is realized, the reduction of the technological process in the assembling process is optimized in many aspects, and the structure is reliable and stable.
Description
Technical Field
The invention relates to the technical field of combined joints, in particular to an L-band rotary combined joint.
Background
The L-band rotary combined joint is mainly used in the field of aerospace, the rotary joint is used for inputting liquid into rotary or reciprocating equipment from the side of a pipeline, then a sealing device for connection is discharged from the rotary joint, the inside of the L-band rotary combined joint mainly comprises a shaft sleeve, a bearing and a rotating body, two ends of the L-band rotary combined joint mainly comprise a waveguide bin and a connecting bin, and then the inside of the L-band rotary combined joint is a main shaft.
However, the waveguide system structure of the current L-band rotary combined joint is usually an integral structure, the internal parts are more, the average power is 2000W, so that the strength and the resistance of the radar antenna transmitting signals are low, the current L-band rotary combined joint is usually sealed by a sealing ring, the air tightness is low, the use is affected by the environment with low altitude, and the interchangeability of a single product channel is reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an L-band rotary combined joint.
The technical scheme adopted for solving the technical problems is as follows: the L-band rotary combined joint comprises a rotary mechanism, wherein one end of the rotary mechanism is connected with a guided wave mechanism, one end of the guided wave mechanism is provided with a debugging cabin, a main shaft is arranged in the rotary mechanism, one end of the main shaft penetrates through the debugging cabin, the other end of the rotary mechanism is provided with a connecting cabin, the main shaft penetrates through the inside of the connecting cabin, and a sealing mechanism is arranged between the debugging cabin and the rotary mechanism;
the rotating mechanism comprises a rotating body, one end of the guided wave mechanism is provided with the rotating body, an inner shell is fixedly connected to the rotating body, an outer shell is connected to the outer portion of the inner shell in a rotating mode, a fixing shell is arranged on the outer side of the outer shell, and the fixing shell is connected with the connecting bin.
Specifically, the guided wave mechanism includes the guided wave pipe, the one end fixedly connected with guided wave pipe of rotator, be equipped with the guided wave port on the guided wave pipe, rotate between guided wave pipe and the debugging storehouse and be connected.
Specifically, the main shaft penetrates through the wave guide pipe, and the cross section of the wave guide port is of a rectangular structure.
Specifically, the height of the wave guide pipe is equal to that of the connecting bin, the wave guide pipe and the rotating body are in an L-shaped structure, and the connecting bin and the fixing shell are in an L-shaped structure.
Specifically, sealing mechanism includes moving ring and quiet ring, install the moving ring on the wave guide pipe, install quiet ring on the wave guide pipe, contradict between moving ring and the quiet ring.
Specifically, the diameters of the movable ring and the stationary ring are equal, and the stationary ring is made of rubber.
Specifically, the end part of the rotating body is of an arc-shaped structure, and the main shaft and the circle center of the rotating body are positioned at the same position.
Specifically, the internal diameter of connecting the storehouse is less than the internal diameter of debugging storehouse, the cross-section of connecting storehouse and debugging storehouse all is annular structure.
Specifically, the rotating mechanism further comprises bearings, and a plurality of bearings are arranged between the outer shell and the inner shell.
The beneficial effects of the invention are as follows:
(1) The invention relates to an L-band rotary combined joint, which is designed in a modularized way: the end part of the rotating mechanism is provided with a guided wave mechanism, the end part of the guided wave mechanism is connected with a debugging bin, the end part of the rotating mechanism is provided with a connecting bin, a main shaft is arranged in the three parts, a waveguide rotating transmission system is formed among the structures, and the waveguide rotating transmission system, the rest coaxial radio frequency rotating transmission system, the converging ring system and the sensor system are modularized, so that the reduction of the number of parts and the reduction of the types are realized, the reduction of the technological process in the assembly process is optimized in many aspects, and the structure is reliable and stable; namely: assembling a plurality of bearings with the inner housing; secondly, connecting the rotary body with the rotary body, and connecting the rotary body with the outer shell again; the main shaft passes through a wave guide port on the wave guide pipe and is fixed by a debugging bin; combining the first two parts, and then sequentially connecting a main shaft at the other end with a connecting bin to enable the waveguide to form a rotating body; finally, performance debugging is carried out; the waveguide rotation combination design adopts a coaxial coupling mode, firstly, a fixed end waveguide is converted into a coaxial conductor, and the rotating end coaxial conductor and the fixed end coaxial conductor are converted into waveguide output after rotation coupling; the roundness of the circular coaxial cavity is good, and in the rotating process, the rotating and fixing two parts of circular waveguide cavities and the choke groove are positioned on the same axis, so that the requirements of wave mode conversion and transmission can be met, the standing wave and the insertion loss fluctuation of the joint in the rotating process are small, and the use requirement is met.
(2) The invention relates to an L-band rotary combined joint, which is designed with air tightness: a sealing mechanism is arranged between the guided wave mechanism and the debugging bin, so that air is thinner in the plateau environment, and under the action of high power, the radio frequency products are easy to strike fire and break down; in order to avoid the generation of the phenomenon, inert gas is flushed into the product, the air tightness of the invention adopts a mode of combining dynamic sealing and static sealing, so that the leakage amount of the product in a rotating state is ensured, when the product is filled with the inert gas, the product starts to rotate continuously at 360 degrees, the leakage amount of the gas is reduced to 0.2 PSI from the original PSI within two hours, and the high-power ignition phenomenon is greatly reduced, namely: the static ring mainly adopts an O-shaped ring to finish the airtight design of the product, and according to the technical index requirement of the product and in combination with the technical parameters of environmental test, the O-shaped ring made of silicone rubber is selected, and the O-shaped ring is selected and the groove is designed according to GB/T3452.3-2005; the O-shaped ring in the product is mainly used in three environments: radial shaft seal groove installation, radial cavity seal groove installation and axial seal groove installation, and the stationary ring rotates along the shaft; the movable ring is arranged on the lower waveguide rotating coaxial assembly and is kept motionless, the contact surface of the static ring is narrow, and the contact surface of the movable ring is wide; the friction pair consisting of the movable ring and the static ring is an important part of mechanical air seal, so that the radio frequency products are prevented from being easy to strike fire and break down.
(3) The L-band rotary combined joint provided by the invention has the advantages that the power is improved: the structure of the invention forms a waveguide rotary transmission system, which is mainly used for signal transmission in a radar system, and the transmitted signal needs high-power support, so that the signal can be stably, accurately and rapidly transmitted to a receiving unit; the anti-interference performance of the radar can be improved by improving the bearing power of the waveguide rotary transmission system, the signal transmitting distance is improved, and the original diameter is increased to 600 km from 400 km.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the overall structure of a preferred embodiment of an L-band rotary union joint according to the present invention;
FIG. 2 is a schematic diagram of the connection structure of the debugging cabin, the guided wave mechanism and the rotating mechanism;
FIG. 3 is a schematic diagram of the connection structure of the debugging bin, the guided wave mechanism, the rotating mechanism and the connection bin shown in the invention;
FIG. 4 is a schematic diagram showing the connection structure of the debugging cabin, the wave guide pipe, the wave guide port, the main shaft, the rotating body, the outer shell, the inner shell, the bearing, the fixing shell and the connection cabin;
FIG. 5 is a schematic diagram of the connection structure of the debug bin and the sealing mechanism according to the present invention.
In the figure: 1. debugging the bin; 2. a wave guiding mechanism; 201. a waveguide; 202. a wave guide port; 3. a main shaft; 4. a rotation mechanism; 401. a rotating body; 402. a bearing; 403. an outer housing; 404. an inner housing; 405. a fixed case; 5. a connecting bin; 6. a sealing mechanism; 601. a moving ring; 602. and (5) a stationary ring.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-5, the L-band rotary combined joint of the invention comprises a rotary mechanism 4, wherein one end of the rotary mechanism 4 is connected with a guided wave mechanism 2, one end of the guided wave mechanism 2 is provided with a debugging cabin 1, a main shaft 3 is arranged in the rotary mechanism 4, one end of the main shaft 3 penetrates through the debugging cabin 1, the other end of the rotary mechanism 4 is provided with a connecting cabin 5, the main shaft 3 penetrates through the inside of the connecting cabin 5, and a sealing mechanism 6 is arranged between the debugging cabin 1 and the rotary mechanism 4;
the rotating mechanism 4 comprises a rotating body 401, one end of the waveguide mechanism 2 is provided with the rotating body 401, an inner shell 404 is fixedly connected to the rotating body 401, an outer shell 403 is rotatably connected to the outer part of the inner shell 404, a fixed shell 405 is arranged on the outer side of the outer shell 403, the fixed shell 405 is connected with the fixed shell 5, the waveguide mechanism 2 comprises a waveguide 201, one end of the rotating body 401 is fixedly connected with the waveguide 201, the waveguide 201 is provided with a waveguide port 202, the waveguide 201 is rotatably connected with a debugging bin 1, the main shaft 3 penetrates through the waveguide 201, the cross section of the waveguide port 202 is of a rectangular structure, the height of the waveguide 201 is equal to the height of the connecting bin 5, an L-shaped structure is formed between the waveguide 201 and the rotating body 401, an L-shaped structure is formed between the connecting bin 5 and the fixed shell 405, the inner diameter of the connecting bin 5 is smaller than the inner diameter of the debugging bin 1, the cross section of the connecting bin 5 and the debugging bin 1 is of an annular structure, the rotating mechanism 4 further comprises a bearing 402, and a plurality of bearings 402 are arranged between the inner shell and the inner shell 401; first assembling a plurality of the bearings 402 with the inner housing 404; then, the rotary body 401 is connected with the outer shell 403 again; the main shaft 3 passes through the wave guide port 202 on the wave guide pipe 201 and is fixed by the debugging bin 1; combining the first two parts, and then sequentially connecting the main shaft at the other end with the connecting bin 5 to enable the waveguide to form a rotating body; finally, performance debugging is carried out; the waveguide rotation combination design adopts a coaxial coupling mode, firstly, a fixed end waveguide is converted into a coaxial conductor, and the rotating end coaxial conductor and the fixed end coaxial conductor are converted into waveguide output after rotation coupling; the roundness of the circular coaxial cavity is good, and in the rotating process, the rotating and fixing two parts of circular waveguide cavities and the choke groove are positioned on the same axis, so that the requirements of wave mode conversion and transmission can be met, the standing wave and the insertion loss fluctuation of the joint in the rotating process are small, and the use requirement is met; when the parts are designed, the coaxial axis of the circle is taken as a reference, and high coaxiality requirements are put forward on a hole shaft forming the choke groove and a bearing mounting hole shaft, and 6-level tolerance is generally adopted; the power-resistant bottleneck of the waveguide rotary joint is on the coaxial line; the coaxial transmission line not only can bear high peak power, but also can effectively inhibit a high-order mode caused by electromagnetic field mode conversion; the theory according to the characteristic impedance and the power capacity of the coaxial line is as follows:
Z 0 ＝138log 10 (D/d)
z0 is the characteristic impedance of the coaxial section, D is the outer diameter of the inner conductor of the coaxial section, and D is the inner diameter of the outer conductor of the coaxial section. In the present rotary combination, a design of minimum loss impedance is adopted, (z0=67 Ω)
The length dimension of the coaxial section is required to ensure that the higher order modes generated in the transition region are sufficiently attenuated (attenuation greater than 20 dB) while also taking into account the narrowing of the operating band caused by the large dimension. Considering the structural requirement, the length of the coaxial part of the rotary joint is about 5 wavelengths, so that the influence of a higher order mode can be basically eliminated; the length dimension of the coaxial section is determined in such a way that reflections between the two coaxial waveguide transformers cancel each other out, thereby minimizing standing waves of the rotary joint in the operating frequency band; the end part of the guided wave mechanism is connected with the debugging bin, the end part of the rotating mechanism is provided with the connecting bin, the main shaft is arranged inside the three parts, the waveguide rotary transmission system is formed among the structures, and the waveguide rotary transmission system, the rest coaxial radio frequency rotary transmission system, the converging ring system and the sensor system are modularized, so that the reduction of the number of parts and the types is realized, the reduction of the technological process in the assembly process is optimized in many aspects, and the structure is reliable and stable.
Specifically, the sealing mechanism 6 includes a moving ring 601 and a stationary ring 602, the moving ring 601 is installed on the waveguide 201, the stationary ring 602 is installed on the waveguide 201, the moving ring 601 and the stationary ring 602 are in contact with each other, the diameters of the moving ring 601 and the stationary ring 602 are equal, the stationary ring 602 is made of rubber, the end part of the rotating body 401 is in an arc structure, and the center of the spindle 3 and the center of the rotating body 401 are located at the same position; the static ring 602 mainly adopts an O-shaped ring to finish the airtight design of a product, and according to the technical index requirements of the product and in combination with the technical parameters of environmental tests, the O-shaped ring made of silicone rubber is selected, and the O-shaped ring is selected and designed according to GB/T3452.3-2005; the O-shaped ring in the product is mainly used in three environments: radial shaft seal groove installation, radial cavity seal groove installation and axial seal groove installation, the stationary ring 602 rotates along the shaft; the movable ring 601 is arranged on the lower waveguide rotating coaxial assembly and is kept motionless, the contact surface of the stationary ring 602 is narrow, and the contact surface of the movable ring 601 is wide; the friction pair formed by the moving ring 601 and the stationary ring 602 is an important part of mechanical airtight seal, and the internal gas pressure is small (2 PSI) in the product, so the requirements on materials are: mechanical properties: has higher elastic modulus, strength and allowable PV value, lower friction coefficient and linear expansion coefficient, excellent wear resistance and self-lubricating property, good impermeability and the like. Corrosion performance: has good chemical property and can prevent the damage caused by corrosion, abrasion, dissolution, swelling and the like caused by the entering of moisture or saline-alkali mist. Thermal performance: has good heat conductivity, heat resistance, cold resistance and adaptability to temperature mutation. The common nonmetallic materials of the friction pair are: carbon graphite, tungsten carbide alloy, ceramics, polytetrafluoroethylene, plastics and the like, and the tungsten carbide alloy is formed by pressing and sintering metal carbide with high hardness, titanium carbide and the like by a method of adding binder powder metallurgy, and has the advantages of high hardness, high strength, wear resistance, high temperature resistance, corrosion resistance and low linear expansion coefficient.
In use, first, the plurality of bearings 402 are assembled with the inner housing 404; then, the rotary body 401 is attached to the outer case 403 again; the main shaft 3 passes through a wave guide port 202 on a wave guide pipe 201 and is fixed by a debugging bin 1; combining the first two parts, and then sequentially connecting a main shaft at the other end with a connecting bin 5 to enable the waveguide to form a rotating body; finally, performance debugging is carried out; the waveguide rotation combination design adopts a coaxial coupling mode, firstly, a fixed end waveguide is converted into a coaxial conductor, and the rotating end coaxial conductor and the fixed end coaxial conductor are converted into waveguide output after rotation coupling; the roundness of the circular coaxial cavity is good, and in the rotating process, the rotating and fixing two parts of circular waveguide cavities and the choke groove are positioned on the same axis, so that the requirements of wave mode conversion and transmission can be met, the standing wave and the insertion loss fluctuation of the joint in the rotating process are small, and the use requirement is met; when the parts are designed, the coaxial axis of the circle is taken as a reference, and high coaxiality requirements are put forward on a hole shaft forming the choke groove and a bearing mounting hole shaft, and 6-level tolerance is generally adopted; the power-resistant bottleneck of the waveguide rotary joint is on the coaxial line; the coaxial transmission line not only can bear high peak power, but also can effectively inhibit a high-order mode caused by electromagnetic field mode conversion; the theory according to the characteristic impedance and the power capacity of the coaxial line is as follows:
Z 0 ＝138log 10 (D/d)
z0 is the characteristic impedance of the coaxial section, D is the outer diameter of the inner conductor of the coaxial section, and D is the inner diameter of the outer conductor of the coaxial section. In the present rotary combination, a design of minimum loss impedance is adopted, (z0=67 Ω)
The length dimension of the coaxial section is required to ensure that the higher order modes generated in the transition region are sufficiently attenuated (attenuation greater than 20 dB) while also taking into account the narrowing of the operating band caused by the large dimension. Considering the structural requirement, the length of the coaxial part of the rotary joint is about 5 wavelengths, so that the influence of a higher order mode can be basically eliminated; the length dimension of the coaxial section is determined in such a way that reflections between the two coaxial waveguide transformers cancel each other out, thereby minimizing standing waves of the rotary joint in the operating frequency band; the end part of the guided wave mechanism 2 is connected with the debugging bin 1, the end part of the rotating mechanism 4 is provided with the connecting bin 5, the main shaft 3 is arranged in the three parts, a waveguide rotary transmission system is formed among the structures, and the waveguide rotary transmission system, the rest coaxial radio frequency rotary transmission systems, the converging ring system and the sensor system are modularized, so that the reduction of the number of parts and the reduction of the types are realized, the reduction of the process flow in the assembly process is optimized in many aspects, and the structure is reliable and stable; .
Then, the static ring 602 mainly adopts an O-shaped ring to finish the airtight design of the product, and according to the technical index requirements of the product and in combination with the technical parameters of environmental tests, the O-shaped ring made of silicone rubber is selected, and the O-shaped ring is subjected to shape selection and groove design according to GB/T3452.3-2005; the O-shaped ring in the product is mainly used in three environments: radial shaft seal groove installation, radial cavity seal groove installation, and axial seal groove installation, stationary ring 602 rotates along the shaft; the movable ring 601 is arranged on the lower waveguide rotating coaxial assembly and is kept motionless, the contact surface of the stationary ring 602 is narrow, and the contact surface of the movable ring 601 is wider; the friction pair consisting of the moving ring 601 and the stationary ring 602 is an important part of mechanical airtight seal, and the internal gas pressure is small (2 PSI) in the product, so the requirements on materials are: mechanical properties: has higher elastic modulus, strength and allowable PV value, lower friction coefficient and linear expansion coefficient, excellent wear resistance and self-lubricating property, good impermeability and the like. Corrosion performance: has good chemical property and can prevent the damage caused by corrosion, abrasion, dissolution, swelling and the like caused by the entering of moisture or saline-alkali mist. Thermal performance: has good heat conductivity, heat resistance, cold resistance and adaptability to temperature mutation. The common nonmetallic materials of the friction pair are: carbon graphite, tungsten carbide alloy, ceramics, polytetrafluoroethylene, plastics and the like, wherein the tungsten carbide alloy is formed by pressing and sintering metal carbide with high hardness, titanium carbide and the like by a method of adding binder powder metallurgy, and has the advantages of high hardness, high strength, wear resistance, high temperature resistance, corrosion resistance and low linear expansion coefficient; under the high-power effect, the radio-frequency products are easy to strike fire and break down; in order to avoid the phenomenon, inert gas is flushed into the product, and the gas tightness adopts a mode of combining dynamic sealing and static sealing, so that the leakage amount of the product in a rotating state is ensured, when the product is filled with the inert gas, the product starts to rotate continuously at 360 degrees, the gas leakage amount is reduced to 0.2 PSI from the original PSI within two hours, and the high-power ignition phenomenon is greatly reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides an L wave band rotary combined joint which is characterized in that, including rotary mechanism (4), the one end of rotary mechanism (4) is connected with guided wave mechanism (2), debugging storehouse (1) are installed to the one end of guided wave mechanism (2), internally mounted of rotary mechanism (4) has main shaft (3), debugging storehouse (1) are run through to the one end of main shaft (3), connecting bin (5) are installed to the other end of rotary mechanism (4), inside of connecting bin (5) are run through to main shaft (3), be equipped with sealing mechanism (6) between debugging storehouse (1) and rotary mechanism (4);
the rotating mechanism (4) comprises a rotating body (401), one end of the wave guiding mechanism (2) is provided with the rotating body (401), an inner shell (404) is fixedly connected to the rotating body (401), an outer shell (403) is rotatably connected to the outer part of the inner shell (404), a fixed shell (405) is arranged on the outer side of the outer shell (403), and the fixed shell (405) is connected with the connecting bin (5);
the wave guide mechanism (2) comprises a wave guide pipe (201), one end of the rotating body (401) is fixedly connected with the wave guide pipe (201), the wave guide pipe (201) is provided with a wave guide port (202), and the wave guide pipe (201) is rotationally connected with the debugging bin (1);
the sealing mechanism (6) comprises a movable ring (601) and a static ring (602), the movable ring (601) is installed on the waveguide tube (201), the static ring (602) is installed on the waveguide tube (201), and the movable ring (601) is in interference with the static ring (602).
2. An L-band rotary union according to claim 1, wherein: the main shaft (3) penetrates through the wave guide pipe (201), and the cross section of the wave guide port (202) is of a rectangular structure.
3. An L-band rotary union according to claim 1, wherein: the height of the wave guide pipe (201) is equal to that of the connecting bin (5), the wave guide pipe (201) and the rotating body (401) are of an L-shaped structure, and the connecting bin (5) and the fixing shell (405) are of an L-shaped structure.
4. An L-band rotary union according to claim 1, wherein: the diameter of the movable ring (601) is equal to that of the static ring (602), and the static ring (602) is made of rubber.
5. An L-band rotary union according to claim 1, wherein: the end part of the rotating body (401) is of an arc-shaped structure, and the center of the main shaft (3) and the center of the rotating body (401) are located at the same position.
6. An L-band rotary union according to claim 1, wherein: the inner diameter of the connecting bin (5) is smaller than that of the debugging bin (1), and the cross sections of the connecting bin (5) and the debugging bin (1) are of annular structures.
7. An L-band rotary union according to claim 1, wherein: the rotating mechanism (4) further comprises a bearing (402), and a plurality of bearings (402) are arranged between the outer shell (403) and the inner shell (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210937836.9A CN115241617B (en) | 2022-08-05 | 2022-08-05 | L wave band rotary combined joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210937836.9A CN115241617B (en) | 2022-08-05 | 2022-08-05 | L wave band rotary combined joint |
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| Publication Number | Publication Date |
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| CN115241617A CN115241617A (en) | 2022-10-25 |
| CN115241617B true CN115241617B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210937836.9A Active CN115241617B (en) | 2022-08-05 | 2022-08-05 | L wave band rotary combined joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115799784B (en) * | 2023-01-31 | 2023-05-12 | 成都世源频控技术股份有限公司 | Clutch type switch switching filter group |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522610A (en) * | 2011-12-22 | 2012-06-27 | 南京鑫轩电子系统工程有限公司 | Multichannel microwave rotary joint |
| US8786385B1 (en) * | 2009-11-12 | 2014-07-22 | Curtis D Lorenc | Rotary joint for radio frequency electromagnetic waves and light waves |
| CN107069151A (en) * | 2017-05-23 | 2017-08-18 | 西安星展测控科技股份有限公司 | A kind of waveguide junction of adjustable clearance |
| CN114421103A (en) * | 2021-11-01 | 2022-04-29 | 成都利尼科医学技术发展有限公司 | Non-contact airtight high-power coaxial waveguide rotary joint |
-
2022
- 2022-08-05 CN CN202210937836.9A patent/CN115241617B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8786385B1 (en) * | 2009-11-12 | 2014-07-22 | Curtis D Lorenc | Rotary joint for radio frequency electromagnetic waves and light waves |
| CN102522610A (en) * | 2011-12-22 | 2012-06-27 | 南京鑫轩电子系统工程有限公司 | Multichannel microwave rotary joint |
| CN107069151A (en) * | 2017-05-23 | 2017-08-18 | 西安星展测控科技股份有限公司 | A kind of waveguide junction of adjustable clearance |
| CN114421103A (en) * | 2021-11-01 | 2022-04-29 | 成都利尼科医学技术发展有限公司 | Non-contact airtight high-power coaxial waveguide rotary joint |
Non-Patent Citations (1)
| Title |
|---|
| 六通道方位旋转关节技术研究;张华林等;现代雷达(第04期);全文 * |
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| CN115241617A (en) | 2022-10-25 |
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